Hatchway for elevators



(No Model.) 3 Sheets-Sheet 1.

' Z. GOODELL. 4

HATGHWAY' FOR ELEVATORS.

No. 429,519. Pat-entedJune 3, 1890.

www 92 (No Model.) I a Sheets-Sheet 2.

Y Z. GOODELL.

HATGHWAY FOR BLE VATORS.

No; 429,519. Patented June 3, 1890.

(No Model.) 3 Sheets-Sheet- 3. I

Z. GOODELL. Y HATGHWAY FOR ELEVATORS.

No. 429,519. Patented June 3. 1890.

UNITED STATES ZINA GOODELL, OF SALEM, MASSACHUSETTS.

HATCHWAY FOR ELEVATORS.

SPECIFICATION forming part of Letters Patent No. 429,519, dated June 3, 1890. Application filed January 2'7, 1890. Serial No. 338,209. (No model.)

To OLZZ whom it may concern.-

Be it known that I, ZINA GOODELL, a citizen of the United States, and a resident of Salem, in the county of Essex and State of Massachusetts, have invented new and useful Improvements in Self -Closing Hatches, of which the following, taken in connection with the accompanying drawings, is a specification.

This invention relates to improvements in self-closing hatches for elevator-wells and mechanism for automatically opening and closing the same by the motion of the car, as will hereinafter be more fully shown and described, reference being had to the accompanying drawings, wherein- Figure 1 represents a side elevation of the invention, showing one of the hatches in a closed position. Fig. 2 represents a plan view of the same. Fig. 3 represents a vertical section of an elevator-well, showing the car in position below the closed hatches. Fig. 4 represents a detail side view of the toothed lever and pinion by means of which a connection is established between the hatch and its actuating-lever. Fig. 5 represents a plan view of the same, and Fig. 6 represents a detail side view of the bearing for said toothed lever and pinion.

Similar letters refer to similar parts wherever they occur on the different parts of the drawings.

A, in Figs. 1, 2, and 3, represents an elevator-well, as usual, and B B represent successive fioors in the building through which the well extends. a I

O is the car, and c is the hoisting-rope, as is common in devices of this kind. 0 is the usual safety-rope, as shown in Figs. 1, 2, and 3.

To the top and bottom of the car 0 are secured the curved or cam-shaped metal bars D D D D, which are preferably united by means of vertical bars d d on the two opposite sides of the elevator, as shown in Figs. 1 and 3.

In practice I prefer to make the vertical bars (1 separate from the top and bottom curved parts D and D, but I do not wish to confine myself to this exact construction, as, if so desired, the said vertical part may be made in a single piece with the top and bottom curved portions without departing from the essence of my invention.

E E represent the hatches, a set of which is arranged in a line with or opposite to the respective floors B B, through which the elevator-well extends. The hatches are preferably made four in number at each floor, and arranged in pairs side by side and opposite to each other, as shown in Fig. 2, to permit their being swung upward free of the safetyrope c.

F F represent the vertical posts on which the car 0 is guided upward and downward, as usual. To each floor B are secured bearings Z) Z), in which/is journaled the cylindrical ends of the preferably square shaft Gr,

as shown inFigs. 1, 2, and 3. The said square shaft Gr passes through correspondinglyshaped perforations in the brackets e e e, secured to the hatchesE E, as shown. Although I prefer to make the shafts G square in section, this is not essential, as they may be made of other form and the brackets e e secured to them in any suitable or convenient manner. 7

To each shaft G is secured in a suitable manner a toothed pinion or segment of a pinion g, it being for this purpose preferably provided with a central square eye or perforation g, adapted to receive the shaft G, as shown. The pinion g is preferably provided with acylindrical hub g Figsand 5, which is loosely journaled in a perforation h of the metal plate or bracket H, which is bolted or otherwise secured to the side of the vertical guide-post F, as shown. The teeth of the pinion g meshin the teeth of the segmental toothed lever I, which is pivoted at h to the bracket H. The outer end of each lever I is connected by means of a rod K (preferably provided with a turn-buckle k) to a lever L above the floor B, said lever being pivoted at Z, preferably to the post F, and having its inner end projecting into the elevator-Well below the cam-shaped or curved bar D on the car 0, as shown in Fig. 1. The lever L' is preferably provided in its inner end with an anti-frictional roller Z, as shown. Centrally below the anti-friction rollers Z Z are located on the under side of two opposite hatches cor responding anti-friction rollers e 6, against which the upper cams D D come in contact during the upward motion of the car, and

pivoted, respectively, to one part of the hatch and to the posts F.

The two horizontal shafts G G are journaled, respectively, to the posts F F at the sides of the well,and these shafts and brackets c conjointly subserve the function of hinges for thehatches, whereby supplemental hinges are unnecessary.

The pair of curved bars D D, connected by a vertical bar (Z and located at each side of the car, serve to gradually open both of the hatch-sections without undue shock.

The operation of the device is as follows Suppose the hatches are in their normally closed positions, as shown in Figs. 1, 2, and 3, and the car about to descend. During the descent of the car the curved cam orbarD on the under side of the car comes in contact with the roller Z on the lever L, causing the latter to be tipped downward, the rod K raised, and the hatches E swung upward by the intermediate connecting mechanism (namely, the toothed lever I and pinion g) to the positions as shown by dotted lines in said figure, and will be held in such positionsuntil the bar (Z and upper curved. cam D have passed by the roller l 011 the lever L and the roller c on the hatches, when the hatches are free to close gradually by their own weight, controlled by the movement of the car, until the normal position (shown in full lines in Fig. 1,) is again reached. During the ascent of the car the upper curved bar D comes in contact with the roller 6 on the under side of the hatch, causing the latter to be swung open as the car ascends, and causes the lever I, link K, and lever L to be moved to the positions shown by dotted lines in Fig. 1. The hatch will remain open during the ascent of the car until the lever L is released by the curved bar D as it passes by the end of said lever, causing the hatch to be gradually closed by its own weight, controlled by the movement of the car as the lever L is gradually relieved from the curved cam D, and so on.

Having thus fully described the nature, construction, and operation of my invention, I wish to secure by Letters Patent and claim- The combination of an elevator-car having at each of two opposite sides an upper and a lower curved bar, a pair of horizontal shafts journaled to opposite sides of the well-posts or frame-work and each having a rigidly-attached pinion, the sectional hatch-doors, the brackets secured to the hatch-sections and to the shafts, a segmental toothed lever engag' ing the pinion of each shaft, a lever pivoted at each side of the well, and the rods connect ing the levers, substantially as described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 26th day of December, A. D. 1889.

ZINA GOODELL.

\Vitnesses:

ALBAN ANDREN, MARTHA J. JACKSON.- 

